Osarogiagbon , W., and O. Iyoha. “SPUTUM AFB POSITIVITY OF SUSPECTED TUBERCULOSIS PATIENTS IN A TERTIARY HOSPITAL IN BENIN CITY NIGERIA ”. African Journal of Tropical Medicine and Biomedical Research, vol. 3, no. 1, Mar. 2015, pp. 46-53, https://www.ajtmbr.org.ng/index.php/home/article/view/51.